中文摘要：

网络零售的出现改变了实体零售商的选址逻辑,一定程度上促进了实体零售商闭店潮的出现。针对这一现象,构建一个网络零售商和两个实体零售商的空间竞争模型,从空间选址角度揭示电商冲击下实体零售商闭店潮的形成机理,同时考察存在网络渠道与实体渠道质量差异下的实体零售商选址决策。研究表明：与传统空间选址理论不同,即使在线性交通成本假定下,实体零售商也不会在城市中心选址,其选址决策取决于网络购物的无效成本与实体购物的交通成本比值;与直觉不同,网络零售商定价不是总低于实体零售商;网络渠道与实体渠道的质量差异促使实体零售商在城市两端选址,导致实体零售商城市中心闭店;交通改善和网络监管有助于实体零售商在城市中心集聚,促进城市繁荣发展。

英文摘要：

Electronic retailer changes the location mechanism of brick-and-mortar retailer which may cause the shop-closed tide. With regard to this phenomenon, this study sets up a spatial competi- tion model with an electronic retailer and two brick-and-mortar retailers to reveal the formation of the shop-closed tide within brick-and-mortar retailers from the perspective of spatial location, analyzing the spatial location strategy of brick-and-mortar with quality difference among dual-channel retailers. Different from traditional spatial theory, brick-and-mortar retailers will not locate at the center of the city even if linear transport cost, depending on the ratio of inutility cost and transport cost. Unlike intuition, it proves that electronic retailer may make a higher price than brick-and-mortar. Quality difference pushes brick-and-mortar retailers to locate at the end of the market. Traffic improvement and network supervision will help to agglomerate among brick-and-mortar, boosting intrinsic motiva- tion of the city development.